r(2)=120+18x-3x^2

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Solution for r(2)=120+18x-3x^2 equation: 


Simplifying
r(2) = 120 + 18x + -3x2

Reorder the terms for easier multiplication:
2r = 120 + 18x + -3x2

Solving
2r = 120 + 18x + -3x2

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Divide each side by '2'.
r = 60 + 9x + -1.5x2

Simplifying
r = 60 + 9x + -1.5x2

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